Hydroxypropyl Starch

Product Description

Hydroxypropyl Starch is a high-performance, plant-derived modified starch produced at our specialized manufacturing facility through the etherification of natural starch bases. This non-ionic technical ingredient functions as a superior thickening agent and Rheology modifier, offering exceptional resistance to enzymatic degradation and high-shear processing. As the personal care market shifts toward sustainable and skin-friendly texturizers, Hydroxypropyl Starch provides formulators with a cost-effective solution for creating luxurious, non-tacky sensory profiles in modern cosmetic applications.

Product Specification

• INCI Name: Hydroxypropyl Starch
• CAS No.: 9049-76-7
• Botanical Source: Zea Mays (Corn) or Manihot Esculenta (Tapioca)
• Appearance: White to off-white fine powder
• Purity (Assay): ≥ 98.0%
• Molar Substitution (MS): 0.05 – 0.20 (Customizable)
• pH (1% aqueous dispersion): 5.5 – 8.0
• Loss on Drying: ≤ 12.0%

Key Benefits & Applications

• Viscosity Enhancement: Acts as an efficient thickening agent, providing excellent emulsion stability and preventing phase separation in creams and lotions.
• Sensory Improvement: Imparts a smooth, velvet-like skin feel and significantly reduces the greasiness often associated with high oil-phase formulations.
• Film-Forming Capability: Creates a natural, breathable barrier on the skin, aiding in moisture retention and enhancing the long-wear properties of color cosmetics.
• Cold-Water Processability: Unlike native starches, our high-purity Hydroxypropyl Starch is designed for easier dispersion, optimizing manufacturing energy efficiency.

Formulation Guidelines

• Recommended Usage: 1.0% – 5.0% for most skincare applications; up to 10.0% for thick masques.
• Processing: For best results, disperse in the water phase and heat to approximately 70-75°C to allow the starch granules to fully swell and activate their thickening properties.
• pH Stability: Performs consistently across a wide pH range (3.5 – 9.0), ideal for formulations containing acidic actives.
• Synergy: Combine with Squalane to deliver high-performance emolliency and weightless shine, providing a sustainable, plant-based alternative to traditional silicones.